SPL Set ID: 1c207bed-10e3-46f0-ad2c-69d5e5c97736

Temsirolimus, an inhibitor of mTOR, is an antineoplastic agent. Temsirolimus is a white to off-white powder with a molecular formula of C 56 H 87 NO 16 and a molecular weight of 1030.30. It is non-hygroscopic. Temsirolimus is practically insoluble in water and soluble in alcohol. It has no ionizable functional groups, and its solubility is independent of pH. The chemical name of temsirolimus is (3 S ,6 R ,7 E ,9 R ,10 R ,12 R ,14 S ,15 E ,17 E ,19 E ,21 S ,23 S ,26 R ,27 R ,34a S )-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-Hexadecahydro-9,27-dihydrox y-3-[(1 R )-2-[(1 S ,3 R ,4 R )-4-hydroxy-3-methoxycyclohexyl]-1-methylethyl]-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-23,27-epoxy-3 H -pyrido[2,1- c ] [1,4]oxaazacyclohentriacontine-1,5,11,28,29(4 H ,6 H ,31 H )-pentone 4'-[2,2-bis(hydroxymethyl)propionate]; or Rapamycin, 42-[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate]. Temsirolimus injection, 25 mg/mL, is a clear, colorless to light yellow, non-aqueous, ethanolic, sterile solution. Temsirolimus injection requires two dilutions prior to intravenous infusion. Temsirolimus injection should be diluted only with the supplied DILUENT for Temsirolimus injection. DILUENT for Temsirolimus injection is a sterile, non-aqueous solution that is supplied with Temsirolimus injection, as a kit. Temsirolimus injection, 25 mg/mL: Active ingredient: temsirolimus (25 mg/mL) Inactive ingredients: dehydrated alcohol (49.90% v/v), butylated hydroxy anisole (0.0003% w/v), butylated hydroxy toluene (0.002% w/v), propylene glycol (50.3% w/v), and anhydrous citric acid (0.0025% w/v). DILUENT for Temsirolimus injection: Inactive ingredients: polysorbate 80 (40.0% w/v), polyethylene glycol 400 (42.8% w/v) and dehydrated alcohol (25.14% v/v). After the Temsirolimus injection vial has been diluted with DILUENT for Temsirolimus injection, in accordance with the instructions in section 2.5, the solution contains 35.04% alcohol. Temsirolimus injection and DILUENT for Temsirolimus injection are filled in clear glass vials with butyl rubber stoppers. Structural Formula